The OST (Offline Storage Table) files in Microsoft Outlook enable you to perform work in an offline mode. OST file is created on the hard disk of the user. Offline mode is possible due to the cached Exchange Mode, that creates a local copy of Exchange mailbox of the user. Using the OST file is just same as working in MS-Word application. Data of the OST file is synchronized with the Exchange Server when you use Internet connection. Sometimes when you try to synchronize your OST file with the Server, you fail to do so. It is possible for you to overcome such situation by appropriate methods. However, if you are not able to sort out the issue, then it is advised to make use of a third party OST PST Conversion tools.

Let's examine a realistic situation suppose you use Microsoft Outlook 2007. As, discussed above Microsoft enables you to work even if there is no Internet connectivity with the help of OST file. Data gets automatically synchronized whenever an Internet connection is available. On one day, you noticed an abrupt behavior of Outlook. That is, when you open Outlook you observed that data does not get properly synchronized. Now you are in a situation, where you are in a danger of losing the Outlook data that you have worked in an offline mode.

Cause:

Such abrupt behavior of Microsoft Outlook is encountered in the following situations:

Use of corrupt user mailbox. Mailbox gets corrupt due to corruption in Microsoft Exchange Server. Presence of malicious virus in mailbox. Mailbox gets deleted. Corruption of OST file.

Solution:

To sort out the problem or to easily access the OST file. You should make use of a OST integrity check tool. The tool scans OST file and the your mailbox that is located on the Exchange Server, compare folders and items. It does not perform any changes on the Server. The location of Scanost.exe tool in your system is drive:\Program Files\Common Files\System\MSMAPI\LocaleID folder. After the use of OST integrity check tool, if you still have problems, then you have an option of Inbox Repair tool. Execution of Inbox Repair (Scanpst.exe) will help you to open the OST file in Outlook. Most probable, the issue will be solved.

However, if you are still experiencing problems while synchronizing the Outlook OST file with the Exchange Server, then you have an option of a third party OST PST Converter Tools. With the help of such tools, you can easily convert OST to PST and can access data of the Outlook mail-objects, such as contacts, attachments, appointments, journal, tasks, events, and more objects. A lots of tools have been introduced in the market from different companies. It is an advised to use software of a reliable company.